Respiration in animals

In which organ is oxygen absorbed into the blood? 

• Gills
• Mouth
• Nose 
• Stomata 

In our lungs, _________ is removed and ________ is absorbed. 

• oxygen ... carbon dioxide 
• carbon dioxide ... oxygen
• oxygen ... nitrogen 
• carbon dioxide ... nitrogen

Lungs are part of the __________ system of a human. 

• circulatory 
• respiratory
• digestive
• muscular

Simon breathes in and out of a paper bag three times. How has the oxygen and carbon dioxide in the bag changed after three breathes?

• Oxygen : increase,

  Carbon dioxide : Increase

• Oxygen : increase,

  Carbon dioxide : decrease

• Oxygen : decrease,

  Carbon dioxide : Increase

• Oxygen : decrease,

  Carbon dioxide : decrease

The body systems that work together to take in oxygen to all parts of the body are ＿＿＿＿＿＿ systems ．

• digestive and circulatory 
• digestive and muscular 
• circulatory and respiratory
• circulatory and muscular

In the lung model shown below, the balloons in the bell jar represents _________ in the human respiratory system.

• windpipe

• lungs

• nose

• air spaces

Which of the following organisms does not have a specialised respiratory system?

• Frog

• Grasshopper

• Paramecium sp.

• Snake

Terrestrial arthropods, like insects, have ___ which are openings to the external environment that allow air into the body.

• spiracles
• bronchioles
• trachea
• tracheoles

Which of the following is the adaptation of skin of frogs for gaseous exchange?

• Moist and cold

• Slippery and slimy

• Thin and folded

• Moist and rich in blood capillaries

Yeast is a

• multicellular

• Carnivore

• anaerobe

• single celled organism